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#ifndef Py_INTERNAL_ABSTRACT_H
#define Py_INTERNAL_ABSTRACT_H
#ifdef __cplusplus
extern "C" {
#ifndef Py_BUILD_CORE
#  error "this header requires Py_BUILD_CORE define"
// Fast inlined version of PyIndex_Check()
static inline int
_PyIndex_Check(PyObject *obj)
    PyNumberMethods *tp_as_number = Py_TYPE(obj)->tp_as_number;
    return (tp_as_number != NULL && tp_as_number->nb_index != NULL);
// Exported for external JIT support
PyAPI_FUNC(PyObject *) _PyNumber_PowerNoMod(PyObject *lhs, PyObject *rhs);
PyAPI_FUNC(PyObject *) _PyNumber_InPlacePowerNoMod(PyObject *lhs, PyObject *rhs);
PyAPI_FUNC(int) _PyObject_HasLen(PyObject *o);
/* === Sequence protocol ================================================ */
#define PY_ITERSEARCH_COUNT    1
#define PY_ITERSEARCH_INDEX    2
#define PY_ITERSEARCH_CONTAINS 3
/* Iterate over seq.
   Result depends on the operation:
   PY_ITERSEARCH_COUNT:  return # of times obj appears in seq; -1 if
     error.
   PY_ITERSEARCH_INDEX:  return 0-based index of first occurrence of
     obj in seq; set ValueError and return -1 if none found;
     also return -1 on error.
   PY_ITERSEARCH_CONTAINS:  return 1 if obj in seq, else 0; -1 on
     error. */
extern Py_ssize_t _PySequence_IterSearch(PyObject *seq,
                                         PyObject *obj, int operation);
/* === Mapping protocol ================================================= */
extern int _PyObject_RealIsInstance(PyObject *inst, PyObject *cls);
extern int _PyObject_RealIsSubclass(PyObject *derived, PyObject *cls);
// Convert Python int to Py_ssize_t. Do nothing if the argument is None.
// Export for '_bisect' shared extension.
PyAPI_FUNC(int) _Py_convert_optional_to_ssize_t(PyObject *, void *);
// Convert Python int to Py_ssize_t. Do nothing if the argument is None.
// Raises ValueError if argument is negative.
PyAPI_FUNC(int) _Py_convert_optional_to_non_negative_ssize_t(PyObject *, void *);
// Same as PyNumber_Index() but can return an instance of a subclass of int.
// Export for 'math' shared extension.
PyAPI_FUNC(PyObject*) _PyNumber_Index(PyObject *o);
typedef struct {
    PyObject *object;
    PySendResult kind;
} PySendResultPair;
// Same as PyIter_Send but returns a struct for MSVC tailcall support
PyAPI_FUNC(PySendResultPair) _PyIter_Send(PyObject *iter, PyObject *arg);
#ifdef __cplusplus
#endif /* !Py_INTERNAL_ABSTRACT_H */

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